Can you please upload the model (.std file)?
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RE: staad pro has encountered a problem and needs to close
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RE: staad pro has encountered a problem and needs to close
Hi Rajat,
Thank you for your response,
Please find attached .std file for your reference.
Thanks,
Ramesh.D(Please visit the site to view this file)
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RE: staad pro has encountered a problem and needs to close
Are you getting this problem with this file or with any other file? Can you please go to the folder where you have saved this .std file and copy it and put in a folder. Try to open it from that folder.
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RE: staad pro has encountered a problem and needs to close
I can able to analyse your model successfully.
Can you please mention the steps you are following, so that we can duplicate this issue in our side and also mention your system specification.
Thank you.
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RE: staad pro has encountered a problem and needs to close
We tried that option also not working & got a same problem.
We opened other .stp files & they can work fine. we have a problem with this particular file only.
We opened other .stp files & they can work fine. we have a problem with this particular file only.
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RE: staad pro has encountered a problem and needs to close
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RE: staad pro has encountered a problem and needs to close
Can you please mention what you are doing (steps) after analysis so that we can duplicate the same and able to give you a solution.
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staad pro has encountered a problem and needs to close
We recently upgrade to staad.pro v8i to latest version 20.07.11.70 .
when we try to run the analysis we got message encountered a problem and needs to close the staad. Please help us on this issue.
Please find attached screen shot for your reference.
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RE: STORY DRIFT
Let me explain this with some values.
To get the Allowable drift to be L/40, you must have input the following command
PRINT STORY DRIFT 0.025
The drift factor (without the correction for Cd/I) which you picked up from the table, is 0.025. Now let us say Cd=3 and I=1.0. So Cd/I =3/1=3. Hence the adjusted drift factor =0.025/3= 0.0083
To account for the Cd/I, you should specify the command as
PRINT STORY DRIFT 0.0083
Now to answer your additional queries,
1. The different denominators like L/61, L/88, L/467 are the actual ratios of drift/story height at the various story levels. Since the drift amounts are different at different stories, the actual ratio values would change. For example let’s say the drift at a particular story is “d” cm. Let’s say your story height is L m. So the number in the denominator is obtained as L X 100/d . The number will change for each story depending on the drift value at each story and the story height.
2. Average displacement is the average of the displacements of all the nodes at a story level. Drift on the other hand is the relative displacement of a story with respect to the story underneath. For example as per your screenshot, at the 7th story, the average displacement in X is 6.8408 cm. To get the drift at story 7, you will have to subtract the average displacement in X for the story 6 ( which is 6.5807 cm ) from this value. So drift at story 7 in X = (6.8408 – 6.5807) cm = 0.2601 which is reported by STAAD.Pro as 0.2602 ( some rounding off causes a negligible difference )
I hope this explains.
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RE: What would be the effects Warp Plates in STAAD analysis?
Whether it is OK to go with some warped plates or get those replaced by triangular plates, is more of a judgment call. As Raymond Curtis pointed out in his post, looking at the imbalance in the static check results could be a factor based on which you can decide which route would be appropriate for your case. I don't think there is a single value of tolerance that can be labeled as good for all models. You can definitely model curved surfaces with plates but for that you have to mesh the curve with a series of flat plates if you are using quad plates. Using triangular plates is a safer bet for the curved regions as that way you will not have this warping issue.
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RE: 1/3rd increase in permissible stress API RP 2A
You are correct. There is no OVR parameter for the API code. However you can apply a load factor to the appropriate combinations to get the same effect. For example instead of multiplying the allowable stress by 1.33 you can factor the loads in the combination by a factor of 1/1.33 = 0.75 as shown below
LOAD COMBINATION 100
1 0.75 2 0.75 6 0.75
where 1, 2 and 6 are primary load cases and 0.75 is the applied load factor.
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1/3rd increase in permissible stress API RP 2A
Hello,
I am running a analysis to API RP 2A WSD. How do I apply a 1/3rd increase in permissible stress to storm condition. In AISC code check, the OVR command can be used.
Thanks,
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RE: error message : DATA SHOULD FOLLOW AFTER CONSTANT COMMAND and not any other type of command. data-check mode entered.
Thank you for your prompt response. Bentley has been very helpful with responding to questions along with this community.
Once I get enough hand on experience with this tool I will also contribute to this community. Thanks SYE.
Once I get enough hand on experience with this tool I will also contribute to this community. Thanks SYE.
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error message : DATA SHOULD FOLLOW AFTER CONSTANT COMMAND and not any other type of command. data-check mode entered.
I am new to staad pro v8i series 6
I am having problems with my wood truss modeling.
After all model is created. I ran my analysis and this error is coming up " error message : DATA SHOULD FOLLOW AFTER CONSTANT COMMAND and not any other type of command. data-check mode entered."
[View:/cfs-file/__key/communityserver-discussions-components-files/5932/Truss-Type-1_2D00_2.std:940:0]
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RE: Software use
The product is only supported on desktop and laptop systems running Windows. I know a few people who have gotten it to run on the Surface platform, but there tend to be some graphical issues reducing usability like very small icons.
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RE: How to design concrete and steel in one file AND why do my truss members fail?
Amitava-
Thanks for your reply! Your comments really helped me with my model. However, I'm still struggling with the truss members specification. I assigned the truss member specification to my truss members, yet I'm receiving warnings about almost all my load cases being divergent. How do I fix this problem? (Please visit the site to view this file)
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RE: Software use
Thanks Seth, by the way, it has been a while that I got the RAM Software, and to be honest, when I graduated in 1988 as a Civil Engineer, there wasn't any software to work on, so I have never used one. I got RAM because I was planning to work more on Structural design on my own, with small and simple projects, but I tried to use it once and I got stuck because don't know how to use all the advantages and icons, since then, I have been trying to locate any sponsor or teacher, that help me and guide me on how to start, and finish a calculation and design for this small projects, and I am talking about houses, small warehouse, or small metal buildings, 2,3 or 4 stories buildings, no more than that, I am not planning to be a big Firm. So my question is, is there a way you can help me to start using the software or anyone can help me and guide me through different projects already perform in your files data base or figure out any invented project? If there is a cost, how much can anyone charge me to be an assessor or instructor.
Thanks and hope you can help me and I can have the chance to start using my software.
Jose Teran, P.E.
Thanks and hope you can help me and I can have the chance to start using my software.
Jose Teran, P.E.
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Software use
Does RAM SS software be uploaded in the new Microsoft Surface Book or Pro 4?
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RE: STORY DRIFT
Sye,
Thanks for your explanation with examples (values involve). Your previous comment confuse me cause if I were to divide the allowable factor by (I/Cd) will just be multiplying it by Cd inwhich would be the same approach if I were to recalculate the elastic drifts from the table to inelastic. So basically, if from the table of elastic drifts or displacements, we were to amplify it by Cd/I, I will just have to divide the allowable factor (in this case say L/40) with Cd/I. This would practically make sense for the inelastic drift will be higher than that of an elastic one.
See snapshot below
Which again brings me to solicit another item. Please see snapshot below which more or less must be the same with the snapshot above
Take note of the drifts herewith. Now STAAD i believe will give me a value of drif t that correspond to the Vs or V which is Ds or deltaE/R which is both the same.
Now, let us look on the inelastic drift in which the values I would have in tabular form will be multiplied by Cd/I. Now which one would it be? Is it the one shown on the first snapshot or the one shown in the second snapshot? Going to this, I am in agreeable terms that numerically speaking, it would be easier to divide the inelastic displacement factor with Cd/I. But still we need to understand where on this graph the inelastic displacement would fall. Any thoughts on this is greatly appreciated.
On point #1
I really can't pick what you said. As, I am trying to use the example i previously attached, I can't get the figures right. Can you elaborate more on this and use the example snapshot i previously sent as a reference?
On point #2
I get this calculation on the drift per floor. My question on this is that with this two set of tables (one is average displacement and the other is drift), where would I used them from exactly? Say when normally we only check on the allowable drift or displacement which would make the second tabled values useful to me or better yet the ratio would be the one I am to look out for. Now when would be the first tabulation be useful for me as a designer? That is what I am asking.
Again, I thank you for this. I do also encourage others from Bentley to pitch in their thoughts on this matter.
Thanks
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RE: STORY DRIFT
Sye,
Also before I forgot, I need your thoughts on this snapshot
By the equation highlighted in yellow, my response spectra with Sa vs Period can be transformed into Sd vs Period.
Would this Sd be an elastic or inelastic one? Do STAAD have a certain command or feature that could provide such results subject for manual checking?
Thanks
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